Fin for a water sport device



FIG. 1 is a perspective rear view of the fin for a water sport device, which embodies my design;

FIG. 2 is a perspective front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a rear view thereof; and,

FIG. 8 is a front view thereof.

The broken line portion is included for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for the fin for a water sport device, as shown and described. 